http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010085866-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-58 |
| filingDate | 1999-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2001-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010085866-A |
| titleOfInvention | Processes for the preparation of 4-substituted benzopyran derivatives |
| abstract | The present invention relates to a process for the preparation of N- (2-cyanoethyl) -5-fluoro-4-fluoromethyl-benzoic acid from 1-fluoro-2-fluoromethyl- 4- (4-trifluoromethylphenoxy) -2-benzenamide was prepared and the pentynamide derivative was reacted with 2,2-bis (fluoromethyl) -N- Substituted benzopyran derivative which is cyclized with trifluoromethyl-2H-1-benzopyran-4-carboxamide; And other methods for this. This method can produce a benzopyran derivative having a shorter process, higher stability, and easier purification than the conventional method. |
| priorityDate | 1998-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 423.